Home / 60,205.07-90,320.82-20,222.61

Finding the Fourth Proportional to 60,205.07, 90,320.82 and 20,222.61

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Solution

The fourth proportional to 60,205.07, 90,320.82 and 20,222.61 is: 30,338.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,205.07 : 90,320.82 = 20,222.61 : x
  2. Step 2: Convert to fraction form
    60,205.07/90,320.82 = 20,222.61/x
  3. Step 3: Cross multiply
    60,205.07x = 90,320.82 × 20,222.61
  4. Step 4: Simplify right side
    60,205.07x = 1,826,522,925.01
  5. Step 5: Solve for x
    x = 1,826,522,925.01/60,205.07
  6. Step 6: Final answer
    x = 30,338.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.